"Key" form approximate Ösenplatz not well chosen

Size is about a Vorhängeschlssschlüssel out (of course wider, due to the slot)

The SD card is locked with a click system with plug-and dissolves when pressed again.

The Miniöse (opening only 2mm in size) but is covered on one side completely from the microSD because exactly the thicker insertion point of the map (in the photo on the left) completely out of the housing showing.
Who by threaded through the eyelet a fine key ring, the risk of unintentional pressure on the out looking card (eg in your pocket), the card unlocks the ring and falls out. Thus, the SD is then very likely gone, along with the data on it.

With a fine tether, as it exists in other USB flash drives, this problem would be nearly solved, but is not included in the scope of delivery.

Otherwise, the SD adapter is super as described, of course.